Guy acquaintance asked me to go to a concert with him, is it a date?

there's a guy I know through my rockclimhing gym. I have him on Fb and we talk when I go climbing but we never really talked more than that. Yesterday out of the blue he Fb messaged me and asked if I would go to a concert with him. He also made a lot of conversation. I don't know if he's just being friendly and needs someone to go with or he is asking me as a date. I asked one of my gifriends who is close with him and she said she did not get an invite.